I've installed allot of BES Enterprise and BES Express/Pro. servers and the new feature confuses me on BES Express 5.0.1.:
BlackBerry Enterprise Server Express has no additional cost for the software or client access licenses (CALs), and can run on any Internet-enabled data plan

-This indicates the Blackberry Enterprise Data Plan is not needed. I have done extensive research on BB forums and on RIM's website but no dice! Nothing provides direction on how this works. I have done 4 installs of BES Express 5.0.1 and not been able to figure out how it works.